<template>
  <div ref="dom" class="charts chart-pie"></div>
</template>

<script>
  import echarts from 'echarts'
  import tdTheme from './theme.json'
  echarts.registerTheme('tdTheme', tdTheme)
  export default {
    name: 'custompie',
    props: {
      value: Array,
      text: String,
      subtext: String
    },
    watch:{
      value:{
        handler:function(){
          this.$nextTick(() => {
            let legend = this.value.map(_ => _.name)
            let option = {
              title: {
                text: this.text,
                subtext: this.subtext,
                x: 'center'
              },

              tooltip: {
                trigger: 'item',
                formatter: "{a} <br/>{b} : {c} ({d}%)"
              },
              legend: {
                orient: 'vertical',
                left: 'left',
                data: legend
              },
              series: [
                {
                  type: 'pie',
                  radius: '55%',
                  center: ['50%', '60%'],
                  data: this.value,
                  itemStyle: {
                    emphasis: {
                      shadowBlur: 10,
                      shadowOffsetX: 0,
                      shadowColor: 'rgba(0, 0, 0, 0.5)'
                    }
                  }
                }
              ]
            }
            let dom = echarts.init(this.$refs.dom, 'tdTheme')
            dom.setOption(option)
          })
        }
      }

    },
    mounted () {
      this.$nextTick(() => {
        let legend = this.value.map(_ => _.name)
        let option = {
          title: {
            text: this.text,
            subtext: this.subtext,
            x: 'center'
          },
          tooltip: {
            trigger: 'item',
            formatter: "{a} <br/>{b} : {c} ({d}%)"
          },
          legend: {
            orient: 'vertical',
            left: 'left',
            data: legend
          },
          series: [
            {
              name: '掺配重量',
              type: 'pie',
              radius: '55%',
              center: ['50%', '60%'],
              data: this.value,
              itemStyle: {
                emphasis: {
                  shadowBlur: 10,
                  shadowOffsetX: 0,
                  shadowColor: 'rgba(0, 0, 0, 0.5)'
                }
              }
            }
          ]
        }
        let dom = echarts.init(this.$refs.dom, 'tdTheme')
        dom.setOption(option)
      })
    }
  }
</script>

<style lang="less">
  .charts{
    //
  }
</style>
